Paper-machine.



PATENTED AUG. 30, 1904.

J. WALSH.

PAPER MACHINE.

APPLICATION FILED our. 21, 1903.

N0 MODEL.

UNITED STATES Patented August 30, 1904.

JAMES VALSH, OF HOLYOKE, MASSACHUSETTS.

PAPER-MACHINE.

SPECIFICATION forming part of Letters Patent No. 768,834, dated August 30, 1904.

Application filed October 21, 1903.

To all whom it may concern:

Be it known that I, JAMES WVALsH, a citizen of the United States of America, and a resident of Holyoke, in the county of Hampden and State of h lassachusetts, have invented certain new and useful Improvements in Paper- Machines, of which the following is a full, clear, and exact description.

This invention relates to improvements in paper-making machines of the cylinder type, the object thereof being to provide a machine for the production of paper of unusual simplicity in construction and organization and efficiency in operation.

Another object is to render the machine capable of producing individual sheets of paper in rapid succession.

The invention consists in the combination and arrangement of parts and the construction of certain of the parts, all substantially as hereinafter fully described, and set forth in the claims.

In the drawings, Figure l is substantiall a vertical sectional View as taken centrally through the length of the machine. Fig; 2 is a plan view of the cylinder. Fig. 3 is a plan of the suction-cylinder.

Similar characters of reference indicate corresponding parts in all of the views.

In the drawings, A indicates the vat or tank for the paper-pulp, having rotatably partially submerged thereon on a horizontal axis the cylinder B, as usual, the peripheral wall a of said cylinder being constituted by a screen or other foraminous material. The screened peripheral wall of the cylinder has divisional strips 5, which may be of metal, such as solder, or the same may be constituted by a nonmetallic substance.

D represents the 'coucher-roll mounted in journal-bearings on the hinged supportingframe (Z therefor and arranged to roll peripherally adjacent the cylinder.

E represents an endless felt having a width approximately that of the length of the cylinder, the same running around the coucherroll, the lower course thereof upon the upper unsubmerged part of the cylinder, then between the pair of rolls 12 12 outside of the vat, thence downwardly to and partially Serial No. 177,837. (No model.)

around the roll 13, forwardly to and around the roll 14, thence with a return course toward the Vat upwardly and rearwardly partially around the roll or cylinder 15 to and around the guide-roll 16, the upper course of this felt band or belt returning to and around the coucher-roll,

Above and adjacent the roll 15 is a roll 18, forwardly beyond which and axially parallel therewith is a similar roll 19, around which rolls 18 and 19 is a comparatively wide belt or band F, which advantageously may be of flexible rubber or similar composition'of rubber, and this rubber band F in its passage around and under the roll 18 and adjacent the roll 15 is brought in practice in proximity to or surface contact upon the felt band or apron E.

G represents a drier-drum having steam inlet and outlet, as usual, and around the same is disposed in a peculiar manner an endless felt band or apron H, aninner loop-like course 20 thereof nearly encircling and in surface contact against the periphery of the drierdrum, while the outer course 22 thereof is guided around and supported by the series of rolls 23, a looped portion or bight 24 of this felt running around in contact with the periphery of a suction-cylinder J, horizontally mounted axially parallel with and adjoining the one, 19, of the pair of rubber blanket-supporting rolls or cylinders 18 and 19.

L represents a table horizontally located above the suction-box and roll 19 and in a position to receive the sheets of paper completed thereupon after the same are brought olil from the drier-cylinder G, j representing a guide to lead the sheets from between the endless carrier-band H and the drier-cylinder onto the table.

M represents an endless band or apron, which may be of felt or other suitable material, the upper course of which runs be- =tween and is supported by the pair of rolls 25 25, and the said upper course of this band or apron M is in facewise contact with and next under the whole or a portion of the under course of the aforementioned rubber apron F, the dotted-line representation of a roll 25 indicating a guide-support for a looped part I or aprons mentioned, and in the drawings for the purpose of clearness of indication of the courses of contiguous portions of some of the endless bands or aprons such contiguous portions are represented as in slight separation----as, for instance, where the apron E comes to proximity between rolls 18 and with the apron F and where the apron M is in facewise proximity to the under course of the apron F; but these approximate'parts are understood in actual construction and operation as running in facewisc contact, except of course when sheets of paper are carried thereupon.

In the operation the stuff or pulp taken 2 5 from the vat A onto the periplierially-screened cylinder having screen-stoppering strips 7), and thereby havlng the la1d-on web individualized or produced after being transformed finally into separate sheets, is carried off at and.

3 then around the coucher-roll and horizontally forwardly and then downwardly to contact with the under course of the apron F, to which the web-sheets will adhere or be caused to adhere, the apron I l having its course of departure at the roll 15 away from the said lower course of the rubber or otherwise-constituted apron F. The web-sheets forwardly produced along and with the course of the apron F are carried at the roll 19 to and face- 4 wise against the felt apron H, which has its running course around the suction-cylinder J, such apron now carrying the nearly-completed sheets of paper around on the circumferential surface of the drier-cylinder between such surface and the inner course 20 of the said felt apron, the sheets emerging at w onto the support L therefor.

The apron H may be of such a light and porous kind of felt as not to defeat the suc- 5 tion action exerted in and by the suction-cylinder J on the web-sheets directly through such felt .at its portion in running contact around and upon the suction-cylinder.

The web-forming and paper-making operation carried out by this machine for the production of the sheets initially individualized at the cylinder because of the subdividingstrips 5 of refractory or non-porous substance insures the making of paper of as fine 01' coarse quality as desired and as corresponds to the stuff or pulp employed in a highly satisfactory and rapid manner, and the sheets will have the edges thereof rendered some-- what even or feathery and with the character- 5 istic of declcle-edged paper.

Having thus described my invention, what I claim, and desire to secure by Letters Patcut, is-

1. In a paper-machine,the combination with a pulp-vat, the cylinder, an endless apron and a coucher-roll, and one or more further supsuporting and guiding rolls for said apron, whereby the latter has its course of movement therearound and around the coucherroll, and with a portion thereof in contact against an upper portion of the cylinder, of a second endless apron, and rolls therefor, one of which and a portion of the apron therearound adjoins the first-named apron, a drier and an endless carrier, running therearound, and a suction-cylinder around which. a loop of said carrier runs, and which is in proximity to one of the rolls for the said second apron.

2. In a papermachine,the combination with the vat, the cylinder, the endless apron E, and the coucher-roll and other rolls pertaining to said apron and around which it runs, apair of rolls 18 and 19, the one 18 having its position adjoining acourse of said apron, and the apron F running around said rolls 18 and 19, and a suctionrcylinder adjacent and coacting with said apron F and one of the rolls therefor.

3. In a paper-machine,tl1e combination with the vat, the cylinder, the endless apron E and the coucher and other rolls pertaining to said apron and around which it runs, a pair of rolls 18 and 19, the one 18 having its position adjoining a course of said apron, and the apron F running around said rolls 18 and 19, an endless apron M having its upper course in running proximity to the lower course of the apron F, and supporting and guiding rolls for said apron M.

4C. In a paper-machine, in combination, a pulp-vat, the cylinder, an endless apron E, and

the coucher-roll, and one or more further supporting and guiding rolls, for the said apron, whereby the latter has its course of movement therearound and with a portion thereof in contact against an upper portion of the cylinder, a second endless apron F, and rolls therefor, one of which and a portion of the apron therearound adjoins the lirst-named apron, a drier-drum, a series of rolls 23, arranged thereabout, and a suction-cylinder in proximity to one of the rolls for the said second apron, and an endless carrier around the said drum, said series of rolls 2?) and. around the suction-cylinder and comprising an inner course in contact against the drier-drum and an outer course in contact on the series of rolls 23, said inner and outer courses merging one into the other at and around the suction-cyl inder.

5. In a paper-machine,the combination with the pulp-vat, and the cylinder, having its peripheral wall composed of a screen-like material provided with non-porous portions extending in web-dividing lines thereupon, an endless apron for receiving and carrying the successive sheet-webs, and suction means for withdrawing the moisture from the sheetwebs.

6. In a paper-machine,the combination with the pulpwat and the cylinder, having its peripheral wall composed of a screen-like material provided with non-porous portions extending in web-dividing lines thereupon, an endless apron for receiving and carrying the successive sheet-webs, suction means for withdrawing the moisture from the sheet-webs, and a drier-drum, and means for carrying the sheets from the web-carrying apron and suction means around on the surface of said drum.

7. In a paper-machine, in combination, the

pulp-vat, the cylinder rotatable therein, and having its peripheral wall constituted by screen-like material having web-separating portions of non-porous material thereon, the coucher-roll D adjoining the cylinder, and the roll 15 remote therefrom and further rolls 12, 13, 14, and 16, and the endless apron E in running engagement around and relatively to the said rolls, the pair of rolls 18 and 19, one of which adjoins the roll 15, and the endless apron F of rubber, running therearound, the apron M located below and with a course thereof next to the lower course of the apron F, and supporting guide-rolls for said apron, the suction-cylinder J adjacent the roll 19, the drier-drum located forwardly beyond the aforenamcd appliances, and having a series of guide-rolls 23, disposed thereabout and separated therefrom, and an endless felt apronH arranged in the form of a double-coursed loop, a bight of which runs around suction-cylinder, the inner course thereof extending therefrom in contact on the periphery of the drierdrum, while the outer course thereof is in running contact around the said series of guide-rolls 23, all arranged for operation substantially as and for the purposes set forth.

8. In a paper-machine, in combination, the pulp-vat, the cylinder rotatable therein, and having its peripheral wall constituted by screen-like material having Web-separating portions of non-porous material thereon, the

coucher-roll .D adjoining the cylinder, and hinged frame (Z therefor, the roll 15 remote from roll D, and further rolls, 12, 13, 1 1, and 16, and the endless apron E in running engagement around and relatively to the said rolls, the pair of rolls 18 and 19, one of which adjoins the roll 15, and the endless apron F running therearound, the apron M located below and with a course thereof next to the lower course of the apron F, and supporting guide-rolls for said apron, the suction-cylinder J adjacent the roll 19, the drier-drum located forwardly beyond the aforenamed appliances, and having a series of guide-rolls 23, disposed thereabout and separated therefrom, an endless felt carrier-apron H arranged in the form of a double-coursed loop, a bight of which runs around suction-cylinder, the inner course thereof extending therefrom in contact on the periphery of the drier-drum, while the outer course thereof is in running contact around the said series of guide-rolls 23, the support L adjacent the drier-drum and onto which the carrier-apron H delivers the sheets of paper, and a guide f between the carrier-apron H and said support.

Signed byme at Springfield, Massachusetts, in presence of two subscribing witnesses.

JAMES WALSH. 

